Blown fuses

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Jul 19, 2014 | 03:47 PM

jwsg

Thread Starter

Stage I

Joined: Jul 2014

Posts: 1

Likes: 0

From: canada

Blown fuses

My 2008 FLHX came with a light show and a blown accessory fuse.

I removed the light show and the 35 feet of wire that came with it.

Since then the bike has blown 3 ignition fuses. All fuses have blown while using the cruise control.

The battery, amps, and alternator are all fine and all electrical things work fine.

It seems obvious to start with the cruise control module but I am asking for any thoughts, help or advice anyone can give me.

Thank you.

Jul 19, 2014 | 04:52 PM

lionsm13

Seasoned HDF Member

Joined: Oct 2007

Posts: 56,052

Likes: 88,322

From: Western South Dakota

You have a chaffed wire somewhere in the equation.
That would be my guess?

Jul 19, 2014 | 06:06 PM

kyle8095

Advanced

Joined: Aug 2012

Posts: 99

Likes: 1

From: manassas va

My sg is in the shop now for that under esp you set the toggle it's OK as soon as you set the button it blows. They found a short to ground being the fairing in the rubbed and shorted out

Jul 20, 2014 | 02:32 PM

MichiganDave

Cruiser

Joined: Apr 2009

Posts: 136

Likes: 6

From: Sterling Heights, Michigan

I have the same problem with my 08 ultra classic. In fact here is the post I started awhile back.
https://www.hdforums.com/forum/touri...me-switch.html

I just recently tried a buddy's right switch housing from his bike to see if the problem was somewhere in the wiring on my bike in the switch housing wiring. We removed the front fairing from both bikes and I plugged his switch housing connector to the connector on my bike and I still have the same problem with the ignition fuse blowing. Not sure where to look next.
Kyle I would be interested to know if you have any idea where exactly the dealer found your short.

Jul 20, 2014 | 02:56 PM

mkguitar

Extreme HDF Member

Joined: Sep 2010

Posts: 14,744

Likes: 402

From: Phoenix '53, '88, '09 Big Twins

Look at the blowed fuse.

IF the material inside has spattered and has carbon inside- then you have a short circuit--- a rubbed through wire somewhere.

if the material looks like it has sagged and parted, then the circuit is overloaded

ensure you have the correct value fuse for the circuit.

a higher rating is not a solution and can allow fire.
fire bad

mike

Jul 20, 2014 | 03:42 PM

akodust

Tourer

Joined: Feb 2007

Posts: 446

Likes: 10

From: Lancaster, Texas

Do not go to the stealer for fuses...go to o'really or auto zone.

Jul 20, 2014 | 03:46 PM

rpeters282

Cruiser

Joined: Aug 2010

Posts: 117

Likes: 0

From: Montgomery Alabama

Chaffing

Check the wiring harness inside the faring around the radio. There are a couple of low tolerance areas there where the insulation can be worn away. Had a horn wire blowing the cruise, blinker, horn circuit. If start there. Manufacturing defect that takes years to show up.